[MasterJoseph]

I've been in a long distance relationship with a girl for around 3 months now, having seen her a few times. We both knew it would be difficult, and started off talking plenty - texting, emailing etc.
In the last few weeks, while I anticipated that the communication would drop of a bit, it has done very sharply from her end.
When we talk it's dead, and she doesn't seem interested in any kind of romantic language at the moment, although she still says that nothing is wrong besides her feeling a bit depressed.
Whenever I am romantic she doesn't respond, and our conversations have drastically shortened.

I don't know what to think! Should I be worried? Or is there a perfectly reasonably explanation? I know that my feelings haven't changed for her, and when I ask her she says that neither have hers....I'm just...worried